//
//  ViewController.h
//  王宇先_03_计算器
//
//  Created by wyx on 16/3/12.
//  Copyright © 2016年 Apon. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
@property(retain,nonatomic)UITextField *txt;
@property(retain,nonatomic)NSMutableString *mutstr,*mustr2,*mustr3;//创建一个可变字符床
@property(retain,nonatomic)UIButton *btn,*btn2,*btn3,*btn4,*point1,*btn5;
@property(assign,nonatomic)double num1,num2,num3;
@property(retain,nonatomic)NSString *fuhao;
@property(assign,nonatomic)int n;
@end

